Check the listing for details. [2-Pack] Reusable Ethanol Testing Kit - Wide Mouth Fuel Test Bottle for E85.... Condition: New, Made in China. Listed at 17.57 USD. Wide Mouth Design for Fewer Spills: Designed specifically with a wide mouth to easily pour gasoline and water into the bottle without spills and leaks. No more getting gas on your hands or searching for a funnel to fill and test your ethanol levels.